Re: Global Warming (was New Medit List Members?

In California, at least, there may develop a
hydrological twist to the migrating climate bands.
It's possible that summer rainfall could increase in
the southern and eastern sections of our med-climate
zone. Historically, San Diego, on the Mexican border
at 32 degrees north latitude, has marginally higher
average July rainfall than San Francisco, at 37.5
degrees north, and our southeasternmost deserts
experience a rainfall peak, such as it is, in summer.
It is conceivable that those tendencies could increase
as warming progresses, rendering our region's climate
more akin to that of the Southwestern Cape or the
Mediterranean (with their occasional summer showers)
than to Chile's. This is over and above a possibly
catastrophic warming of the winter precipitation
regime that would reduce thickness and coverage of
snowpacks and thus their storage capacity for
spring/summer water distribution.
-Jason Dewees
San Francisco, California

--- Tony and Moira Ryan <theryans@xtra.co.nz> wrote:
> Doobieous wrote:
> > 
> > I'm involved in another online forum and everyone
> > there is denying global warming, citing recent
> > examples of colder than usual winters. WHat they
> > forget is that global warming simply means warmer
> > global AVERAGE temperatures. The effects of
> weather
> > vary when you get down to microclimates, so i dont
> see
> > how it discounts Global warming. What is evident
> is
> > earlier spring thaws, as the thaws that are
> causing
> > problems for Polar bears.
> > 
> > I've read that what Global warming will do for the
> > northern hemisphere is essentially move climate
> bands
> > northward. So Canada will have a climate more like
> the
> > great plains. I assume Coastal California will
> assume
> > a more Southern California like climate possibly
> as
> > far north as San Francisco, and Southern
> California
> > will become more arid.
> 
>  Barry 
> Your conjecture about the probable migration of
> climate bands appears to
> be shared by the experts I have read.
> 
> The implication of this for the more northern parts
> of Canada is
> apparently pretty horrendous even in the short term.
> I recently saw a TV
> documentary about life in the far north of America
> which gave the latest
> on both men and animals and how it was already
> disrupting their whole
> lifestyle. The people, for instance, can no longer
> build igloos
> successfully in case of need because of the
> deteriorated snow quality
> and when they go to do their winter hunting their
> mobility is curtailed
> because the snow is not strong and deep enough for
> the usual length of
> time to hold up their vehicles. The are talking of
> the need for some
> sort of hybrid transport which can change
> effectively from snow to
> slush.
> 
> The plight of the polar bears is even more serious,
> as they depend on
> good solid iceflows right through winter to be able
> to find their food
> and now these are breaking up early stranding either
> the bears or their
> food animals and upsetting the whole well-balanced
> ecosystem.
> 
>  The doco implied this could well lead to the final
> demise of the bears
> a few years down the track and no doubt equally
> disrup the life of other
> local species.
> 
> I suppose similar problems are developing across the
> top of Eurasia.
> 
> Moira
> -- 
> Tony & Moira Ryan,
> Wainuiomata, North Island, NZ.     Pictures of our
> garden at:-
>
http://mywebpages.comcast.net/cherie1/Garden/TonyandMoira/index.htm
> 


__________________________________________________
Do you Yahoo!?
Yahoo! Web Hosting - Let the expert host your site
http://webhosting.yahoo.com
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index